Update Linux to v5.10.109

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz

Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/sound/usb/line6/capture.c b/sound/usb/line6/capture.c
index 4b6e99e..970c9bd 100644
--- a/sound/usb/line6/capture.c
+++ b/sound/usb/line6/capture.c
@@ -247,7 +247,6 @@
 const struct snd_pcm_ops snd_line6_capture_ops = {
 	.open = snd_line6_capture_open,
 	.close = snd_line6_capture_close,
-	.ioctl = snd_pcm_lib_ioctl,
 	.hw_params = snd_line6_hw_params,
 	.hw_free = snd_line6_hw_free,
 	.prepare = snd_line6_prepare,
diff --git a/sound/usb/line6/driver.c b/sound/usb/line6/driver.c
index 1e38cdd..59faa5a 100644
--- a/sound/usb/line6/driver.c
+++ b/sound/usb/line6/driver.c
@@ -97,7 +97,7 @@
 /*
 	Send raw message in pieces of wMaxPacketSize bytes.
 */
-static int line6_send_raw_message(struct usb_line6 *line6, const char *buffer,
+int line6_send_raw_message(struct usb_line6 *line6, const char *buffer,
 				  int size)
 {
 	int i, done = 0;
@@ -113,12 +113,12 @@
 			retval = usb_interrupt_msg(line6->usbdev,
 						usb_sndintpipe(line6->usbdev, properties->ep_ctrl_w),
 						(char *)frag_buf, frag_size,
-						&partial, LINE6_TIMEOUT * HZ);
+						&partial, LINE6_TIMEOUT);
 		} else {
 			retval = usb_bulk_msg(line6->usbdev,
 						usb_sndbulkpipe(line6->usbdev, properties->ep_ctrl_w),
 						(char *)frag_buf, frag_size,
-						&partial, LINE6_TIMEOUT * HZ);
+						&partial, LINE6_TIMEOUT);
 		}
 
 		if (retval) {
@@ -132,6 +132,7 @@
 
 	return done;
 }
+EXPORT_SYMBOL_GPL(line6_send_raw_message);
 
 /*
 	Notification of completion of asynchronous request transmission.
@@ -336,23 +337,18 @@
 {
 	struct usb_device *usbdev = line6->usbdev;
 	int ret;
-	unsigned char *len;
+	u8 len;
 	unsigned count;
 
 	if (address > 0xffff || datalen > 0xff)
 		return -EINVAL;
 
-	len = kmalloc(1, GFP_KERNEL);
-	if (!len)
-		return -ENOMEM;
-
 	/* query the serial number: */
-	ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
-			      USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
-			      (datalen << 8) | 0x21, address,
-			      NULL, 0, LINE6_TIMEOUT * HZ);
-
-	if (ret < 0) {
+	ret = usb_control_msg_send(usbdev, 0, 0x67,
+				   USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
+				   (datalen << 8) | 0x21, address, NULL, 0,
+				   LINE6_TIMEOUT, GFP_KERNEL);
+	if (ret) {
 		dev_err(line6->ifcdev, "read request failed (error %d)\n", ret);
 		goto exit;
 	}
@@ -361,45 +357,42 @@
 	for (count = 0; count < LINE6_READ_WRITE_MAX_RETRIES; count++) {
 		mdelay(LINE6_READ_WRITE_STATUS_DELAY);
 
-		ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
-				      USB_TYPE_VENDOR | USB_RECIP_DEVICE |
-				      USB_DIR_IN,
-				      0x0012, 0x0000, len, 1,
-				      LINE6_TIMEOUT * HZ);
-		if (ret < 0) {
+		ret = usb_control_msg_recv(usbdev, 0, 0x67,
+					   USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+					   0x0012, 0x0000, &len, 1,
+					   LINE6_TIMEOUT, GFP_KERNEL);
+		if (ret) {
 			dev_err(line6->ifcdev,
 				"receive length failed (error %d)\n", ret);
 			goto exit;
 		}
 
-		if (*len != 0xff)
+		if (len != 0xff)
 			break;
 	}
 
 	ret = -EIO;
-	if (*len == 0xff) {
+	if (len == 0xff) {
 		dev_err(line6->ifcdev, "read failed after %d retries\n",
 			count);
 		goto exit;
-	} else if (*len != datalen) {
+	} else if (len != datalen) {
 		/* should be equal or something went wrong */
 		dev_err(line6->ifcdev,
 			"length mismatch (expected %d, got %d)\n",
-			(int)datalen, (int)*len);
+			(int)datalen, len);
 		goto exit;
 	}
 
 	/* receive the result: */
-	ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
-			      USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
-			      0x0013, 0x0000, data, datalen,
-			      LINE6_TIMEOUT * HZ);
-
-	if (ret < 0)
+	ret = usb_control_msg_recv(usbdev, 0, 0x67,
+				   USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+				   0x0013, 0x0000, data, datalen, LINE6_TIMEOUT,
+				   GFP_KERNEL);
+	if (ret)
 		dev_err(line6->ifcdev, "read failed (error %d)\n", ret);
 
 exit:
-	kfree(len);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(line6_read_data);
@@ -422,12 +415,11 @@
 	if (!status)
 		return -ENOMEM;
 
-	ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
-			      USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
-			      0x0022, address, data, datalen,
-			      LINE6_TIMEOUT * HZ);
-
-	if (ret < 0) {
+	ret = usb_control_msg_send(usbdev, 0, 0x67,
+				   USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
+				   0x0022, address, data, datalen, LINE6_TIMEOUT,
+				   GFP_KERNEL);
+	if (ret) {
 		dev_err(line6->ifcdev,
 			"write request failed (error %d)\n", ret);
 		goto exit;
@@ -436,14 +428,11 @@
 	for (count = 0; count < LINE6_READ_WRITE_MAX_RETRIES; count++) {
 		mdelay(LINE6_READ_WRITE_STATUS_DELAY);
 
-		ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
-				      0x67,
-				      USB_TYPE_VENDOR | USB_RECIP_DEVICE |
-				      USB_DIR_IN,
-				      0x0012, 0x0000,
-				      status, 1, LINE6_TIMEOUT * HZ);
-
-		if (ret < 0) {
+		ret = usb_control_msg_recv(usbdev, 0, 0x67,
+					   USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+					   0x0012, 0x0000, status, 1, LINE6_TIMEOUT,
+					   GFP_KERNEL);
+		if (ret) {
 			dev_err(line6->ifcdev,
 				"receiving status failed (error %d)\n", ret);
 			goto exit;
@@ -550,6 +539,7 @@
 	/* NOTE: hwdep layer provides atomicity here */
 
 	line6->messages.active = 1;
+	line6->messages.nonblock = file->f_flags & O_NONBLOCK ? 1 : 0;
 
 	return 0;
 }
@@ -579,6 +569,9 @@
 	while (kfifo_len(&line6->messages.fifo) == 0) {
 		mutex_unlock(&line6->messages.read_lock);
 
+		if (line6->messages.nonblock)
+			return -EAGAIN;
+
 		rv = wait_event_interruptible(
 			line6->messages.wait_queue,
 			kfifo_len(&line6->messages.fifo) != 0);
@@ -626,11 +619,27 @@
 	return rv;
 }
 
+static __poll_t
+line6_hwdep_poll(struct snd_hwdep *hwdep, struct file *file, poll_table *wait)
+{
+	__poll_t rv;
+	struct usb_line6 *line6 = hwdep->private_data;
+
+	poll_wait(file, &line6->messages.wait_queue, wait);
+
+	mutex_lock(&line6->messages.read_lock);
+	rv = kfifo_len(&line6->messages.fifo) == 0 ? 0 : EPOLLIN | EPOLLRDNORM;
+	mutex_unlock(&line6->messages.read_lock);
+
+	return rv;
+}
+
 static const struct snd_hwdep_ops hwdep_ops = {
 	.open    = line6_hwdep_open,
 	.release = line6_hwdep_release,
 	.read    = line6_hwdep_read,
 	.write   = line6_hwdep_write,
+	.poll    = line6_hwdep_poll,
 };
 
 /* Insert into circular buffer */
diff --git a/sound/usb/line6/driver.h b/sound/usb/line6/driver.h
index e5e572e..ecf3a2b 100644
--- a/sound/usb/line6/driver.h
+++ b/sound/usb/line6/driver.h
@@ -27,7 +27,7 @@
 #define LINE6_FALLBACK_INTERVAL 10
 #define LINE6_FALLBACK_MAXPACKETSIZE 16
 
-#define LINE6_TIMEOUT 1
+#define LINE6_TIMEOUT 1000
 #define LINE6_BUFSIZE_LISTEN 64
 #define LINE6_MIDI_MESSAGE_MAXLEN 256
 
@@ -66,8 +66,8 @@
 
 extern const unsigned char line6_midi_id[3];
 
-static const int SYSEX_DATA_OFS = sizeof(line6_midi_id) + 3;
-static const int SYSEX_EXTRA_SIZE = sizeof(line6_midi_id) + 4;
+#define SYSEX_DATA_OFS (sizeof(line6_midi_id) + 3)
+#define SYSEX_EXTRA_SIZE (sizeof(line6_midi_id) + 4)
 
 /*
 	 Common properties of Line 6 devices.
@@ -108,6 +108,8 @@
 	LINE6_CAP_CONTROL_MIDI = 1 << 4,
 	/* device provides low-level information */
 	LINE6_CAP_CONTROL_INFO = 1 << 5,
+	/* device provides hardware monitoring volume control */
+	LINE6_CAP_HWMON_CTL =	1 << 6,
 };
 
 /*
@@ -163,6 +165,7 @@
 		struct mutex read_lock;
 		wait_queue_head_t wait_queue;
 		unsigned int active:1;
+		unsigned int nonblock:1;
 		STRUCT_KFIFO_REC_2(LINE6_BUFSIZE_LISTEN * LINE6_RAW_MESSAGES_MAXCOUNT)
 			fifo;
 	} messages;
@@ -184,6 +187,8 @@
 			   void *data, unsigned datalen);
 extern int line6_read_serial_number(struct usb_line6 *line6,
 				    u32 *serial_number);
+extern int line6_send_raw_message(struct usb_line6 *line6,
+					const char *buffer, int size);
 extern int line6_send_raw_message_async(struct usb_line6 *line6,
 					const char *buffer, int size);
 extern int line6_send_sysex_message(struct usb_line6 *line6,
diff --git a/sound/usb/line6/pcm.c b/sound/usb/line6/pcm.c
index f70211e..fdbdfb7 100644
--- a/sound/usb/line6/pcm.c
+++ b/sound/usb/line6/pcm.c
@@ -359,13 +359,6 @@
 	if (ret < 0)
 		goto error;
 
-	ret = snd_pcm_lib_malloc_pages(substream,
-				       params_buffer_bytes(hw_params));
-	if (ret < 0) {
-		line6_buffer_release(line6pcm, pstr, LINE6_STREAM_PCM);
-		goto error;
-	}
-
 	pstr->period = params_period_bytes(hw_params);
  error:
 	mutex_unlock(&line6pcm->state_mutex);
@@ -381,7 +374,7 @@
 	mutex_lock(&line6pcm->state_mutex);
 	line6_buffer_release(line6pcm, pstr, LINE6_STREAM_PCM);
 	mutex_unlock(&line6pcm->state_mutex);
-	return snd_pcm_lib_free_pages(substream);
+	return 0;
 }
 
 
@@ -501,10 +494,8 @@
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_line6_capture_ops);
 
 	/* pre-allocation of buffers */
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
-					      snd_dma_continuous_data
-					      (GFP_KERNEL), 64 * 1024,
-					      128 * 1024);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
+				       NULL, 64 * 1024, 128 * 1024);
 	return 0;
 }
 
diff --git a/sound/usb/line6/playback.c b/sound/usb/line6/playback.c
index 797ced3..8233c61 100644
--- a/sound/usb/line6/playback.c
+++ b/sound/usb/line6/playback.c
@@ -392,7 +392,6 @@
 const struct snd_pcm_ops snd_line6_playback_ops = {
 	.open = snd_line6_playback_open,
 	.close = snd_line6_playback_close,
-	.ioctl = snd_pcm_lib_ioctl,
 	.hw_params = snd_line6_hw_params,
 	.hw_free = snd_line6_hw_free,
 	.prepare = snd_line6_prepare,
diff --git a/sound/usb/line6/pod.c b/sound/usb/line6/pod.c
index b667bb8..16e6443 100644
--- a/sound/usb/line6/pod.c
+++ b/sound/usb/line6/pod.c
@@ -110,7 +110,7 @@
 	POD_BUSY_MIDISEND
 };
 
-static struct snd_ratden pod_ratden = {
+static const struct snd_ratden pod_ratden = {
 	.num_min = 78125,
 	.num_max = 78125,
 	.num_step = 1,
diff --git a/sound/usb/line6/podhd.c b/sound/usb/line6/podhd.c
index 5d9954a..b24bc82 100644
--- a/sound/usb/line6/podhd.c
+++ b/sound/usb/line6/podhd.c
@@ -11,6 +11,7 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <sound/core.h>
+#include <sound/control.h>
 #include <sound/pcm.h>
 
 #include "driver.h"
@@ -37,11 +38,14 @@
 
 	/* Firmware version */
 	int firmware_version;
+
+	/* Monitor level */
+	int monitor_level;
 };
 
 #define line6_to_podhd(x)	container_of(x, struct usb_line6_podhd, line6)
 
-static struct snd_ratden podhd_ratden = {
+static const struct snd_ratden podhd_ratden = {
 	.num_min = 48000,
 	.num_max = 48000,
 	.num_step = 1,
@@ -179,29 +183,25 @@
 static int podhd_dev_start(struct usb_line6_podhd *pod)
 {
 	int ret;
-	u8 *init_bytes;
+	u8 init_bytes[8];
 	int i;
 	struct usb_device *usbdev = pod->line6.usbdev;
 
-	init_bytes = kmalloc(8, GFP_KERNEL);
-	if (!init_bytes)
-		return -ENOMEM;
-
-	ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
+	ret = usb_control_msg_send(usbdev, 0,
 					0x67, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
 					0x11, 0,
-					NULL, 0, LINE6_TIMEOUT * HZ);
-	if (ret < 0) {
+					NULL, 0, LINE6_TIMEOUT, GFP_KERNEL);
+	if (ret) {
 		dev_err(pod->line6.ifcdev, "read request failed (error %d)\n", ret);
 		goto exit;
 	}
 
 	/* NOTE: looks like some kind of ping message */
-	ret = usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0), 0x67,
+	ret = usb_control_msg_recv(usbdev, 0, 0x67,
 					USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
 					0x11, 0x0,
-					init_bytes, 3, LINE6_TIMEOUT * HZ);
-	if (ret < 0) {
+					init_bytes, 3, LINE6_TIMEOUT, GFP_KERNEL);
+	if (ret) {
 		dev_err(pod->line6.ifcdev,
 			"receive length failed (error %d)\n", ret);
 		goto exit;
@@ -216,13 +216,12 @@
 			goto exit;
 	}
 
-	ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0),
+	ret = usb_control_msg_send(usbdev, 0,
 					USB_REQ_SET_FEATURE,
 					USB_TYPE_STANDARD | USB_RECIP_DEVICE | USB_DIR_OUT,
 					1, 0,
-					NULL, 0, LINE6_TIMEOUT * HZ);
+					NULL, 0, LINE6_TIMEOUT, GFP_KERNEL);
 exit:
-	kfree(init_bytes);
 	return ret;
 }
 
@@ -250,6 +249,116 @@
 	}
 }
 
+static const unsigned int float_zero_to_one_lookup[] = {
+0x00000000, 0x3c23d70a, 0x3ca3d70a, 0x3cf5c28f, 0x3d23d70a, 0x3d4ccccd,
+0x3d75c28f, 0x3d8f5c29, 0x3da3d70a, 0x3db851ec, 0x3dcccccd, 0x3de147ae,
+0x3df5c28f, 0x3e051eb8, 0x3e0f5c29, 0x3e19999a, 0x3e23d70a, 0x3e2e147b,
+0x3e3851ec, 0x3e428f5c, 0x3e4ccccd, 0x3e570a3d, 0x3e6147ae, 0x3e6b851f,
+0x3e75c28f, 0x3e800000, 0x3e851eb8, 0x3e8a3d71, 0x3e8f5c29, 0x3e947ae1,
+0x3e99999a, 0x3e9eb852, 0x3ea3d70a, 0x3ea8f5c3, 0x3eae147b, 0x3eb33333,
+0x3eb851ec, 0x3ebd70a4, 0x3ec28f5c, 0x3ec7ae14, 0x3ecccccd, 0x3ed1eb85,
+0x3ed70a3d, 0x3edc28f6, 0x3ee147ae, 0x3ee66666, 0x3eeb851f, 0x3ef0a3d7,
+0x3ef5c28f, 0x3efae148, 0x3f000000, 0x3f028f5c, 0x3f051eb8, 0x3f07ae14,
+0x3f0a3d71, 0x3f0ccccd, 0x3f0f5c29, 0x3f11eb85, 0x3f147ae1, 0x3f170a3d,
+0x3f19999a, 0x3f1c28f6, 0x3f1eb852, 0x3f2147ae, 0x3f23d70a, 0x3f266666,
+0x3f28f5c3, 0x3f2b851f, 0x3f2e147b, 0x3f30a3d7, 0x3f333333, 0x3f35c28f,
+0x3f3851ec, 0x3f3ae148, 0x3f3d70a4, 0x3f400000, 0x3f428f5c, 0x3f451eb8,
+0x3f47ae14, 0x3f4a3d71, 0x3f4ccccd, 0x3f4f5c29, 0x3f51eb85, 0x3f547ae1,
+0x3f570a3d, 0x3f59999a, 0x3f5c28f6, 0x3f5eb852, 0x3f6147ae, 0x3f63d70a,
+0x3f666666, 0x3f68f5c3, 0x3f6b851f, 0x3f6e147b, 0x3f70a3d7, 0x3f733333,
+0x3f75c28f, 0x3f7851ec, 0x3f7ae148, 0x3f7d70a4, 0x3f800000
+};
+
+static void podhd_set_monitor_level(struct usb_line6_podhd *podhd, int value)
+{
+	unsigned int fl;
+	static const unsigned char msg[16] = {
+		/* Chunk is 0xc bytes (without first word) */
+		0x0c, 0x00,
+		/* First chunk in the message */
+		0x01, 0x00,
+		/* Message size is 2 4-byte words */
+		0x02, 0x00,
+		/* Unknown */
+		0x04, 0x41,
+		/* Unknown */
+		0x04, 0x00, 0x13, 0x00,
+		/* Volume, LE float32, 0.0 - 1.0 */
+		0x00, 0x00, 0x00, 0x00
+	};
+	unsigned char *buf;
+
+	buf = kmemdup(msg, sizeof(msg), GFP_KERNEL);
+	if (!buf)
+		return;
+
+	if (value < 0)
+		value = 0;
+
+	if (value >= ARRAY_SIZE(float_zero_to_one_lookup))
+		value = ARRAY_SIZE(float_zero_to_one_lookup) - 1;
+
+	fl = float_zero_to_one_lookup[value];
+
+	buf[12] = (fl >> 0) & 0xff;
+	buf[13] = (fl >> 8) & 0xff;
+	buf[14] = (fl >> 16) & 0xff;
+	buf[15] = (fl >> 24) & 0xff;
+
+	line6_send_raw_message(&podhd->line6, buf, sizeof(msg));
+	kfree(buf);
+
+	podhd->monitor_level = value;
+}
+
+/* control info callback */
+static int snd_podhd_control_monitor_info(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 100;
+	uinfo->value.integer.step = 1;
+	return 0;
+}
+
+/* control get callback */
+static int snd_podhd_control_monitor_get(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
+	struct usb_line6_podhd *podhd = line6_to_podhd(line6pcm->line6);
+
+	ucontrol->value.integer.value[0] = podhd->monitor_level;
+	return 0;
+}
+
+/* control put callback */
+static int snd_podhd_control_monitor_put(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_line6_pcm *line6pcm = snd_kcontrol_chip(kcontrol);
+	struct usb_line6_podhd *podhd = line6_to_podhd(line6pcm->line6);
+
+	if (ucontrol->value.integer.value[0] == podhd->monitor_level)
+		return 0;
+
+	podhd_set_monitor_level(podhd, ucontrol->value.integer.value[0]);
+	return 1;
+}
+
+/* control definition */
+static const struct snd_kcontrol_new podhd_control_monitor = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "Monitor Playback Volume",
+	.index = 0,
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.info = snd_podhd_control_monitor_info,
+	.get = snd_podhd_control_monitor_get,
+	.put = snd_podhd_control_monitor_put
+};
+
 /*
 	Try to init POD HD device.
 */
@@ -298,6 +407,15 @@
 			return err;
 	}
 
+	if (pod->line6.properties->capabilities & LINE6_CAP_HWMON_CTL) {
+		podhd_set_monitor_level(pod, 100);
+		err = snd_ctl_add(line6->card,
+				  snd_ctl_new1(&podhd_control_monitor,
+					       line6->line6pcm));
+		if (err < 0)
+			return err;
+	}
+
 	if (!(pod->line6.properties->capabilities & LINE6_CAP_CONTROL_INFO)) {
 		/* register USB audio system directly */
 		return snd_card_register(line6->card);
@@ -354,7 +472,7 @@
 		.id = "PODHD500",
 		.name = "POD HD500",
 		.capabilities	= LINE6_CAP_PCM | LINE6_CAP_CONTROL
-				| LINE6_CAP_HWMON,
+				| LINE6_CAP_HWMON | LINE6_CAP_HWMON_CTL,
 		.altsetting = 1,
 		.ctrl_if = 1,
 		.ep_ctrl_r = 0x81,
diff --git a/sound/usb/line6/toneport.c b/sound/usb/line6/toneport.c
index d0a555d..e33df58 100644
--- a/sound/usb/line6/toneport.c
+++ b/sound/usb/line6/toneport.c
@@ -63,7 +63,7 @@
 
 #define TONEPORT_PCM_DELAY 1
 
-static struct snd_ratden toneport_ratden = {
+static const struct snd_ratden toneport_ratden = {
 	.num_min = 44100,
 	.num_max = 44100,
 	.num_step = 1,
@@ -126,11 +126,12 @@
 {
 	int ret;
 
-	ret = usb_control_msg(usbdev, usb_sndctrlpipe(usbdev, 0), 0x67,
-			      USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
-			      cmd1, cmd2, NULL, 0, LINE6_TIMEOUT * HZ);
+	ret = usb_control_msg_send(usbdev, 0, 0x67,
+				   USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT,
+				   cmd1, cmd2, NULL, 0, LINE6_TIMEOUT,
+				   GFP_KERNEL);
 
-	if (ret < 0) {
+	if (ret) {
 		dev_err(&usbdev->dev, "send failed (error %d)\n", ret);
 		return ret;
 	}